import urllib.request
import urllib.parse

# 1页
# http://www.kfc.com.cn/kfccda/ashx/GetStoreList.ashx?op=cname
# post
# cname: 北京
# pid:
# pageIndex: 1
# pageSize: 10


# 2页
# http://www.kfc.com.cn/kfccda/ashx/GetStoreList.ashx?op=cname
# post
# cname: 北京
# pid:
# pageIndex: 2
# pageSize: 10

def create_quest(page):
    base_url = 'http://www.kfc.com.cn/kfccda/ashx/GetStoreList.ashx?op=cname'
    headers = {
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.107 Safari/537.36'
    }
    data = {
        "cname" : '北京',
        'pid' : '',
        'pageIndex' : page,
        'pageSize' : '10'
    }
    data = urllib.parse.urlencode(data).encode("utf-8")
    # print(url)
    request = urllib.request.Request(url=base_url, data=data, headers=headers)
    return request

def get_content(request):
    response = urllib.request.urlopen(request)
    content = response.read().decode('utf-8')
    return content


def down_load(page, content):
    with open("kfc_" + str(page) + ".json", "w", encoding="utf-8") as fp:
        fp.write(content)

if __name__ == '__main__':
    start_page = int(input('请输入起始的页码'))
    end_page = int(input('请输入结束的页面'))

    for page in range(start_page, end_page + 1):
        # 每一页都有自己的请求对象的定制
        request = create_quest(page)
        # 获取响应的数据
        content = get_content(request)
        # 下载
        down_load(page, content)